Electric lamp or similar device



July 23, 1935. L. R. PETERS 2,009,094

ELECTRIC LAMP OR SIMILAR DEVICE Filed Dec. 24, 1932 IN v.2 N 751-1. LEUR.PE TEES BY WM Hrs Ara-032x222" Patented July 23, 1935 2,00 94 UNITEDSTATESPATENT OFFICE 2,009,094 ELECTRIC LAMP on SIMILAR DEVICE Leo R.Peters, Garfield Heights, Ohio, assignor to General Electric Company, acorporation of New York 1 Application December 24, 1932, Serial No.648,782

6 Claims. (Cl. 176-29) I n Myi invention relates to electric lamps orsimthe ordinary low melting point solders may be ar evices comprisingone or more e1ectr1c enused. One which has given good results is comergytranslation elements sealed in a bulb and posed of 40% bismuth 40% leadand 207 tin more pa icularly to the portions of such devices The mass ofmetal 39 also preferably encl ses a 53181195231125 tahedcziilnectignsbetween the leads of metal collar 20 which is securely clamped to the 5Althou h n lli te external electr cal c rcuit. nsulation 2i on wire l8.The collar is smallest particfiarlyldal 'l ed o deii t e in vfhi li 3131 3211.; a l dlmireter at 22 sq as not to be easily pulled from emergeat different portions thereof, an example nfe gm a zi li f igg fi i fiigf z s h g is the double-ended lamp, the leads of the outer orifice ofthe pocket smallez' in cro s fi w w ic emerge at opposite ends. Myinvention is particularly adapted for application to lamps used iy gg ygfig 2 322 2 2 :5 of n fi in strings for various decorative purposessuch as y e p 6 Cu 8 Christmas tree ornamentation. According to my mgSham aemg transferred to the bulb m 15 invention, the lamp bulb carriesan extension in filf fi i fff g gg i i g $2 15 which the lead wire issealed and the outer end t p a ng m w re an gl-ves portion thereof ishollow and receives the end of a S fa cqnneztlonfeven though thesoldering an external conductor. The said hollow end por- 5f of th bulbth 1 tlon constitutes a pocket which c t body Xha t d d e t e i 6 amp ofcomparatively easily fusible metal in which is 18 6 us 9 g man ac Afterthe 20 embedded the end of the le ad Wire and of haust the end mustsealed off and although the external conductor. K Preferably the hollowthis -m1gm accomphshed by fusmg ?'n-mt?rend portion has its outerorifice of smaller crossmedlate portlon of the tu-bular end It Issection than that of the rest of the said end ooriened to seal ofi byhead glass tion. Such a construction adds to the resistance othermaterial 24 havmg lower-mt-amng pom-1t 25 of the device against pullingout of the connected than the bulb glass ntained withi the sai parts asthe strain is transmitted to the bulb rath- 'tubula'r To begm the saldbead 1s than to the connection with the lead wire smaller m diameterthan the passagepf the tube The principal objects of my invention are topro- 9 as to exhaust 9 the bulb A i vide a construction which may beeasily and ecodirected. agamst thait pm'tmn the sunqundmg nomicallymanufact d and assembled a one tube ad acent to said head will softensaid porwhich wi11 b rugged and still present an attrac tion and thebead and will cause them to unite tive appearance. Various otherfeatures and -adand to seal off h m constnctmn of the vantages of myinvention will appear from the detube end at this pqmt 15 producedcorrespond' scription which follows of a species thereof and mg to.constriction produced at the opposite 35 from th accompanying drawingend of the bulb by the formation of the seal per- 1 t drawing Fig. 1 isa longitudinal Section tion H6. The pocket I! is provided as before andthrough an electric lamp of my invention; Fig. 2 the walls are drawninward about the opening is an end View thereof and Figs. 3 and 4 arelonto Prevent the 50mm mass from being Pulled 40 gitudinal sections ofmodified end portions The remaining described Parts of this AO thereof.end of the lamp are duplications of parts also The specific lamp shownin Fi 1 and 2 used in the other end and are numbered accordprises theglass bulb to with the Substantially ingly. Although the lamp ends areconstructed cylindrical neck or end portions H and E2 in differently I wsh t l d w n th s p of a5 which are sealed leading-in wires I3 a d, it:this invention lamps havingboth ends constructed spectively. The innerends of the leading-in cording to either of these desi nswires areclamped about opposite ends of the fila- In e modification shown in Fig.3, I av merit t5. Bulb end ll is sealed to leading-in eliminated thefused or drawn down rim of the wire 3 at (6 and forms an open-endedpocket l1 pocket as it appears not to be necessary providin which theouter end of the leading-in wire and ing the collar 20 is caused to wetor weld securely 50 the end of an external conductor wire 98 are to thesolder mass 99. The modified lamp end. connected. The ends of each ofthese wires are shown in Fig. 4 is for use where it is desired toembedded in a mass 89 of solder or other easily make electricalconnecting by inserting a pin fusible material which preferably expandson into the tubular end to contact with the solder til cooling andcompletely fills the pocket. Any of. mass. The leading-in wire 25 is inthis case 55 forced to the bottom of the pocket and the solder mass 26is located thereabout.

What I claim as new and desire to secure by Letters Patent in the UnitedStates is:

1. An electric lamp or similar device comprising a bulb having anextension, a leading-in conductor sealed in said extension and havingits outer end extending into a pocketin said extension having an outerend orifice of smaller cross-section than the rest of said pocket and amass of easily fusible metal located in said pocket andsurrounding saidouter end of said leadingin conductor and having embedded therein an endof an external conductor.

2. A double-ended electric lamp or similar device comprising a bulbhaving extensions at either end in each of which is sealed a leading-inwire having its outer end extending into a pocket in said extensionhaving an outer end orifice of smaller cross-section than the rest ofsaid pocket and a mass of easily fusible metal located I in said pocketand surrounding said outer end of said leading-in conductor and havingembedded therein an end of an external insulated conductor to which iscrimped a collar which is united to said easily fusible metal.

3. The combination of an electric lamp or similar device and an externalconductor constituting a device adapted to form part of a string of saidlamps or similar devices with intervening lengths of said conductor,said lamp or similar device comprising a bulb having an extension, aleading-in conductor sealed in said extension and having its outer endextending into a pocket insaid extension, the end of said externalconductor extending also into said pocket, and a mass of easily fusiblemetal filling a. portion of.

said pocket and securing together the endsof said leading-in conductorand said external conductor.

d, The combination of a double-ended incan= descent lamp or similardevice and external conductors constituting a device adapted to formpart of a string of said lamps or similar devices with interveninglengths of said conductors, said lamp or similar device comprising abulb having an extension at each end, a leading-in conductor sealed insaid extension and having its outer end extending into a pocket in saidextension, the end of said externalconductor extending also into saidpocket, and a mass of easily fusible metal filling a portion of saidpocket and securing together the ends of said leading-in conductor andsaid external conductor.

5. The combination of an electric lamp and an external conductor adaptedto form part of a string of lamps with intervening lengths of saidconductor, said lamp comprising a bulb of vitreous material having anintegral extension the end portion of which constitutes a pocket, aleading-in conductor having a portion thereof sealed in said bulb and anend extending into said pocket and a mass of easily fusible metalconfined within the walls of said pocket and having embedded thereinsaid leading-7m conductor end, an end of said external conductor beingalso embedded in said mass.

6. The combination of a double-ended electric lamp and externalconductors one at each end thereof adapted to form part of a string oflamps with intervening lengths of said conductors, said lamp comprisinga bulb of vitreous material having at each end an integral extension theend portion of which constitutes a pocket, a leadingin conductor havinga portion thereof sealed in said bulb and an end extending into saidpocket and a mass of easily fusible metal confined-within the walls ofsaid pocket and having embedded therein said leading-in conductor end,an end of said external conductor being also embedded in said mass.

' LEO R.'PETERS.

